How to Saveas xlsx file with file format as DBF4.

What can I do to be able to saveas DBF4 ! My goal is to convert from Excel to DBF

Console.WriteLine(" XLS to MDB4 VS MDB4 to XLS");

Console.WriteLine("Where is the file you want to convert from ");

Console.ForegroundColor = ConsoleColor.White;

string FileName = Console.ReadLine(); Console.WriteLine();

Console.WriteLine()

; Console.WriteLine("Where do you want your Resulting file to be");

string OutPut_TargetFolder = Console.ReadLine();

if (FileName.Contains("xls") || FileName.Contains("XLS"))

{

Console.WriteLine("Working ...... Please wait");

excel.Application AppMX = new excel.Application();

var wb = AppMX.Workbooks.Open(FileName);

excel.Workbook ewb = AppMX.Workbooks.Open(FileName,null);

ewb.SaveAs(OutPut_TargetFolder, excel.XlFileFormat.xlDBF4 ); <==============Throws an Exception Exception from HRESULT: 0x800A03EC.

wb.Close();

AppMX.Quit();

Console.WriteLine("Done Converting from XLSX TO CSV");